 /*******************************************************************************
  * Copyright (c) 2000, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.update.internal.ui.security;

 import java.net.*;

 /**
  * Update Manager Authenticator Sadly there can only be one registered per VM
  */
 public class UpdateManagerAuthenticator extends Authenticator {
     //private Authentication savedPasswordAuthentication;

     /*
      * @see Authenticator#getPasswordAuthentication()
      */
     protected PasswordAuthentication getPasswordAuthentication() {
         // String protocol = getRequestingProtocol();
 InetAddress address = getRequestingSite(); // can be null;
 // int port = getRequestingPort();
 String prompt = getRequestingPrompt(); // realm or message, not documented that can be null
 // String scheme = getRequestingScheme(); // not documented that can be null

          // get the host name from the address since #getRequestingHost
 // is not available in the foundation 1.0 class libraries
 String hostString = null;
         if (address != null) {
             hostString = address.getHostName();
         }
         if (hostString == null) {
             hostString = ""; //$NON-NLS-1$
 }
         String promptString = prompt;
         if (prompt == null) {
             promptString = ""; //$NON-NLS-1$
 }

         Authentication auth = UserValidationDialog.getAuthentication(
                 hostString, promptString);
         if (auth != null)
             return new PasswordAuthentication(auth.getUser(), auth
                     .getPassword().toCharArray());
         else
             return null;
     }
 }

